Home / 296,779.14-445,162.50-72,140.76

Finding the Fourth Proportional to 296,779.14, 445,162.50 and 72,140.76

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Solution

The fourth proportional to 296,779.14, 445,162.50 and 72,140.76 is: 108,209.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,779.14 : 445,162.50 = 72,140.76 : x
  2. Step 2: Convert to fraction form
    296,779.14/445,162.50 = 72,140.76/x
  3. Step 3: Cross multiply
    296,779.14x = 445,162.50 × 72,140.76
  4. Step 4: Simplify right side
    296,779.14x = 32,114,361,073.50
  5. Step 5: Solve for x
    x = 32,114,361,073.50/296,779.14
  6. Step 6: Final answer
    x = 108,209.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.